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STI ATV Tires from Rocky Mountain ATV/MC

STI is dedicated to the design, development and manufacturing of high quality ATV and UTV tires. Their engineers are committed to developing tires that meet the highest standards and provide the greatest value to their customers. Rocky Mountain ATV/MC has many kinds of STI ATV tires, made for sand, snow, mud, tracks and trails. You can be sure any tire that Rocky Mountain ATV/MC sells is durable and built to last, but we also strive to provide incredible prices as well.

If you need two STI ATV tires, make sure you check out our ATV Tire and Wheel Builder Package which can save you up to 56%. Simply choose two tires and wheels using our filters search that will find the tires to fit your machine perfectly. Then our trained professionals will mount them for free and get them ready to be shipped along with the free valve stems you receive with your package. In addition, you also receive free ground shipping with any ATV Tire and Wheel Package.

Latest STI ATV Tires Reviews – You could win up to $500 for reviewing products!

  • STI Roctane XD Radial Tire

    STI Roctane XD Radial Tire

    Sidney in CO

    tough tire

    Best tires I have ever used. Have over 5000 miles on old ones, no flats. Rocks , gravel, dirt and snow ,have not hurt them, just time for new ones. Have them on sportsman 1000.

    Read All Reviews
  • STI Tech 4 XC Tire

    STI Tech 4 XC Tire

    Dennis in OR

    Great tire excellent traction will be buying more.

    Wasn’t sure about them at first glad I chose Sti tech 4 very nice looking tire so far great in the mud and rocky ground wearing great ,will be buying more

    Read All Reviews
  • STI Tech 4 MX Tire

    STI Tech 4 MX Tire

    Michael in WV

    great tires

    Great product for the price looks good and holds up well. I would buy again.

    Read All Reviews
  • STI Out & Back HT Tire

    STI Out & Back HT Tire

    MIKE in WI


    Put these on a Mule UTV the traction is great along with the handling. To early to tell on tire life, but at this time would recommend these tires

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  • STI Black Diamond ATR Radial Tire

    STI Black Diamond ATR Radial Tire

    DONNA in UT

    Great customer service

    I called to order tires for my ATV. just getting divorced I had no idea what i needed. The rep at RM ATV went out of his way to help me. I will never trade any place else.

    Read All Reviews
  • STI Out & Back Max Tire

    STI Out & Back Max Tire

    Wayne in FL

    I'm running 32x10x14 on my 2017 YXZ SS SE and they are awesome! I don't think there is a better tire out there for the mud! They real eat it up and they are tough!

    Read All Reviews
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